package iohomework_1;

import java.io.*;

public class CopyDemo3BUffered {
    public static void main(String[] args) throws IOException {
        FileInputStream fis=new FileInputStream("gou.jpg");
        BufferedInputStream bis=new BufferedInputStream(fis);
        FileOutputStream fos=new FileOutputStream("gou_new1.jpg");
        BufferedOutputStream bos=new BufferedOutputStream(fos);
        long start=System.currentTimeMillis();
        int d;
        while((d= bis.read())!=-1){
            bos.write(d);
        }
        long end=System.currentTimeMillis();
        System.out.println("复制完毕，用时："+(end-start)+"ms");
        bis.close();
        bos.close();
    }
}
